Heavy Snow in Helena Valley, Montana

Heavy Snow October 25, 2023 – October 26, 2023 · Helena Valley, Montana

What the National Weather Service wrote

Several reports were received of an additional 6 inches of snow in the Helena valley overnight the 25th into the 26th. Most snow fell between midnight and 6 AM in Helena. Official NWS observations at the Helena Airport totaled 6.4 inches late evening the 25th through the early afternoon on the 26th.

The wider storm

A robust upper trough, embedded waves, and jet energy supported two rounds of snow across North-central and Southwest Montana October 25-27, 2023. The first round, Oct 25 & 26, was more impactful to North-central and Central Montana, while the second round of snow, Oct 26 & 27, was more impactful to Southwest through Central Montana.

Source: NOAA Storm Events Database, event 1138671. Narratives are written by the National Weather Service forecast office that issued the report.

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